Maybe disagreeable is the wrong word since, in The Night of the Hunter, part of the evil Robert Mitchum portrays is in his ability to make people think he's a good guy when he's not.
Doesn't matter. The movie is great, though a bit odd. And maybe that's why I like it and did a review of it.
(And yes, it's been a while since I wrote anything but it's been a busy few weeks - not to mention great weather and who wants to be inside when that's going on?)